WO2007091793A1 - Procédé d'observation utilisant le système d'observation d'un four - Google Patents

Procédé d'observation utilisant le système d'observation d'un four Download PDF

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Publication number
WO2007091793A1
WO2007091793A1 PCT/KR2007/000407 KR2007000407W WO2007091793A1 WO 2007091793 A1 WO2007091793 A1 WO 2007091793A1 KR 2007000407 W KR2007000407 W KR 2007000407W WO 2007091793 A1 WO2007091793 A1 WO 2007091793A1
Authority
WO
WIPO (PCT)
Prior art keywords
furnace
temperature
monitoring
computer
image
Prior art date
Application number
PCT/KR2007/000407
Other languages
English (en)
Inventor
Bae Hoon Kim
Original Assignee
Best Maintenance Service Co., Ltd
Youngkook Electronics Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Best Maintenance Service Co., Ltd, Youngkook Electronics Co., Ltd filed Critical Best Maintenance Service Co., Ltd
Publication of WO2007091793A1 publication Critical patent/WO2007091793A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C11/00—Watch chains; Ornamental chains
    • A44C11/007—Tennis type
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/12—C-spring-type bracelets or wrist-watch holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21L—MAKING METAL CHAINS
    • B21L11/00—Making chains or chain links of special shape
    • B21L11/005—Making ornamental chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0014—Devices for monitoring temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/02—Observation or illuminating devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C2005/5288—Measuring or sampling devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2300/00—Process aspects
    • C21C2300/06—Modeling of the process, e.g. for control purposes; CII
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F23N2229/20—Camera viewing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/20—Warning devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present invention relates, in general, to a monitoring method using a furnace monitoring system, which makes it possible to monitor the inside of a furnace that is operating at a high temperature, in order to rapidly cope with changes in internal conditions, thereby reducing the percentage of defective materials in the furnace, and preventing the danger of fire caused by faulty ignition at the time of initial ignition.
  • the inside of the furnace can be monitored only in such a manner that two or more skilled workers frequently look into the inside of the furnace through a monitoring hole provided on one side of the furnace.
  • this method still has a problem in that, because the camera can only photograph the inside of the furnace as it is visible through the window, it is difficult to perfectly photograph the inside of the furnace, and in that, because the camera, which is installed outside the window formed in the furnace wall, is extremely restricted with respect to the photographing angle thereof, the inside of the furnace cannot be properly photographed.
  • an object of the present invention is to provide a monitoring method using a furnace monitoring system, wherein the furnace monitoring system, which is formed of heat-resistant material and has a cooling unit, is installed to monitor the inside of the furnace, so that it is possible to monitor a burner from the time of initial ignition to the time of extinguishment to preemptively prevent an accidental explosion resulting from faulty ignition, wherein the states of the refractory, the beam, and the heated material in the furnace are frequently checked, so that it is possible not only to exchange the internal structures of the furnace at a proper time but also to frequently monitor the situation of the material heated in the furnace, wherein the maximum, minimum, and average temperatures in the furnace are set, so that it is possible to maintain the internal temperature of the furnace at a proper level, and wherein the installed monitoring unit measures temperatures up to 1800°C, so that it can be applied to various furnaces.
  • a monitoring method using a furnace monitoring system which includes a step of inserting a vision tube provided to a monitoring unit of the furnace monitoring system into a through pipe installed in the wall of a furnace; a step of measuring the temperature and photographing the situation in the furnace using the inserted vision tube, and simultaneously cooling the vision tube, inserted into the furnace wall, using the cooling air that is supplied to a panel and is then cleaned by an air cleaner of the panel; a step of sending the temperature and image, measured and photographed by the lens of the vision tube, to a computer through an image sensor of a charged coupled device (CCD) camera; a step of applying the sent temperature and image data to data setting colors according to temperatures, converting the sent temperature and image data into a temperature distribution image, and outputting the converted result on a screen; a step of calculating the average temperature in the furnace using the temperature distribution image; a step of setting monitoring regions so as to measure the temperature at a position where a user
  • CCD charged coupled device
  • the furnace monitoring system which is formed of heat resistant material and has the cooling unit, is installed to monitor the inside of the furnace, so that it is possible to monitor a burner from initial ignition to extinguishment thereof, in order to preemptively prevent an accidental explosion resulting from faulty ignition.
  • the states of the refractory, the beam, and the heated material in the furnace can be frequently checked, so that it is possible not only to replace the internal structures of the furnace at a proper time but also to frequently monitor the conditions of the material heated in the furnace.
  • the maximum, minimum, and average temperatures in the furnace are set, so that it is possible to maintain the internal temperature of the furnace at a proper level.
  • the installed monitoring unit can measure temperatures up to 1800°C, and thus can be applied to various furnaces.
  • FIG. 1 is a block diagram illustrating a furnace monitoring system according to the present invention
  • FIG. 2 is a flowchart of a furnace monitoring system according to the present invention.
  • FIG. 1 is a block diagram illustrating a furnace monitoring system according to the present invention
  • FIG. 2 is a flowchart of a furnace monitoring system according to the present invention.
  • a through pipe 2 is installed in the wall 1 of a furnace.
  • the through pipe 2 is preferably formed of material capable of withstanding a temperature of 1800°C or more.
  • a monitoring unit 30 includes a vision tube 10 on which are mounted a lens
  • a charge-coupled device (CCD) camera 12 and a coolant port 13, and which passes through the through pipe 2, and a carrier 20 having a shock absorber 21 and a retractable spring 22 so as to allow the vision tube 10 to pass through the through pipe 2 and be inserted into the furnace.
  • CCD charge-coupled device
  • the monitoring unit 30 inserted into the furnace is preferably made of heat resistant material.
  • a panel 40 includes an air cleaner 41 supplying purified air to the vision tube 10 of the monitoring unit 30, and a controller 42 controlling the carrier 20 of the monitoring unit 30.
  • a computer 50 has installed therein temperature monitoring software, which is capable of monitoring and analyzing temperature and image data received from the monitoring unit 30, and a monitor 60, which outputs the analyzed data on a screen thereof so as to allow the analyzed data to be viewed.
  • a compressor 70 which supplies cooling air to the panel 40, is installed on one side of the furnace.
  • the minimum temperature and the maximum temperature are differently set according to the type of the furnace to which the furnace monitoring system 100 is applied.
  • the minimum operating temperature and the maximum operating temperature are set to 200°C and 1000°C, respectively.
  • the minimum operating temperature and the maximum operating temperature are set to 1600°C and 1700°C, respectively.
  • At least one material to be heated is loaded into the furnace, and the furnace and the furnace monitoring system 100 are turned on.
  • the carrier 20 of the monitoring unit 30 inserts the vision tube 10 into the furnace through the through pipe 2 formed in the furnace wall 1.
  • the vision tube 10 is inserted into the furnace while the shock absorber 21 and the retractable spring 22 of the carrier 20 of the monitoring unit 30 are controlled by the controller 42 of the panel 40.
  • the vision tube 10 photographs the inside of the furnace continuously before the furnace is ignited, and then the process of heating the structure and material in the furnace from the beginning, thereby monitoring whether or not anything is wrong with the structure in the furnace and whether or not the material in the furnace is properly heated.
  • the compressor 70 provided outside, supplies cooling air to the air cleaner
  • the created clean air is injected into the vision tube 10 inserted in the furnace through the coolant port 13 of the vision tube 10, so that the vision tube 10 can be cooled to photograph the inside of the furnace while resisting the high temperature of 1800°C in the furnace.
  • the computer 50 applies the sent image and thermal wavelength data to the colors according to the temperature range between the maximum and minimum temperatures, which is set in the temperature monitoring program, and outputs the applied data to the monitor as a temperature distribution image.
  • the reason for measuring the average temperature of the furnace is to control the internal temperature of the furnace so as to match the internal temperature of the furnace with the operating temperature, and to simultaneously check the situation inside the furnace.
  • a monitoring region is set so as to enable a user to measure the temperature at a position which the user intends to monitor using the temperature distribution image output to the monitor.
  • the monitoring region can be set up to a maximum of 32 regions which the user intends to monitor in the form of a point (a coordinate of the temperature distribution image), a line, or a quadrilateral box having an arbitrary size. Each of the set monitoring regions can be shifted from its original coordinates to other coordinates at the request of the user.
  • the temperature monitoring program installed in the computer 50, compares and analyzes the output temperature of each monitoring region with the maximum and minimum temperatures that are initially set in the computer 50.
  • the temperature data of the monitoring regions is converted into a histogram or a line profile, and is output as a report such that the user can easily check the temperature distribution.
  • the report is stored in the computer 50 so as to be able to use the data of the monitoring regions in the future.
  • the furnace monitoring system 100 repeats the above-described steps until the material is completely heated while the thermal wavelength and image data from the monitoring unit 30 are sent to the computer 50. When the material is completely heated, the furnace monitoring system 100 is stopped.
  • the furnace monitoring system which is formed of heat resistant material and has the cooling unit, is installed to monitor the inside of the furnace, so that it is possible to monitor a burner from initial ignition to extinguishment thereof, in order to preemptively prevent an accidental explosion resulting from faulty ignition. Further, the states of the refractory, the beam, and the heated material in the furnace can be frequently checked, so that it is possible not only to replace the internal structures of the furnace at a proper time but also to frequently monitor the conditions of the material heated in the furnace. [50] In addition, the maximum, minimum, and average temperatures in the furnace are set, so that it is possible to maintain the internal temperature of the furnace at a proper level.
  • the installed monitoring unit can measure temperatures up to 1800°C, and thus can be applied to various furnaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Radiation Pyrometers (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

L'invention porte sur un procédé d'observation utilisant le système d'observation d'un four. Ledit procédé consiste: à photographier l'intérieur du four; à analyser les longueurs d'onde thermiques et les images du four; à les comparer aux valeurs d'un programme de suivi des températures installé sur un ordinateur; à émettre une alarme sonore lorsque la température sort d'une plage de valeurs fixées; à augmenter ou réduire automatiquement la température du four en conséquence; à afficher les données de température des zones observées pour que l'utilisateur puisse en prendre connaissance facilement; et à stocker les données de température dans l'ordinateur. On peut donc suivre le comportement du brûleur, de l'allumage à l'extinction, notamment pour prévenir une explosion accidentelle due à un allumage défectueux.
PCT/KR2007/000407 2006-02-10 2007-01-24 Procédé d'observation utilisant le système d'observation d'un four WO2007091793A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2006-0012866 2006-02-10
KR1020060012866A KR100622356B1 (ko) 2006-02-10 2006-02-10 가열로 내부 감시 시스템을 이용한 감시방법

Publications (1)

Publication Number Publication Date
WO2007091793A1 true WO2007091793A1 (fr) 2007-08-16

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PCT/KR2007/000407 WO2007091793A1 (fr) 2006-02-10 2007-01-24 Procédé d'observation utilisant le système d'observation d'un four

Country Status (2)

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KR (1) KR100622356B1 (fr)
WO (1) WO2007091793A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743983A (zh) * 2014-01-22 2014-04-23 上海大众汽车有限公司 燃烧炉电器模块的离线测试方法和测试装置
CN104881535A (zh) * 2015-05-21 2015-09-02 东南大学 改进的火电厂锅炉温度场重建测温算法
CN106987278A (zh) * 2017-05-23 2017-07-28 广州博恩能源有限公司 一种生物质气化炉
US11312648B2 (en) 2016-12-08 2022-04-26 Land Instruments International Limited Control system for furnace

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100901213B1 (ko) * 2007-06-20 2009-06-08 삼회산업 (주) 화각 조절이 가능한 렌즈튜브 어셈블리
KR101767765B1 (ko) * 2015-12-22 2017-08-14 주식회사 포스코 소둔로용 영상촬영시스템
KR102004841B1 (ko) * 2018-06-01 2019-07-29 주식회사 코어이미징 가열로 모니터링 시스템 및 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0520564A (ja) * 1991-07-12 1993-01-29 Hochiki Corp 画像処理を用いた火災検出装置
JPH0548936A (ja) * 1991-08-21 1993-02-26 Hitachi Zosen Corp 炉内監視カメラの冷却装置
JPH09261516A (ja) * 1996-03-19 1997-10-03 Toshiba Corp 監視カメラ装置
US6229563B1 (en) * 1998-07-14 2001-05-08 Fosbel International Limited Camera insertion into a furnace

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100446578B1 (ko) * 2001-09-01 2004-09-04 주식회사 영국전자 비젼튜브를 이용한 로 내부 감시 방법
KR100467748B1 (ko) * 2001-09-01 2005-01-26 주식회사 영국전자 로(爐) 내부 감시용 비젼튜브
KR100607052B1 (ko) * 2004-04-01 2006-08-01 소재춘 노(爐)내부 삽입형 공랭식 감시카메라용 슬리브 하우징

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0520564A (ja) * 1991-07-12 1993-01-29 Hochiki Corp 画像処理を用いた火災検出装置
JPH0548936A (ja) * 1991-08-21 1993-02-26 Hitachi Zosen Corp 炉内監視カメラの冷却装置
JPH09261516A (ja) * 1996-03-19 1997-10-03 Toshiba Corp 監視カメラ装置
US6229563B1 (en) * 1998-07-14 2001-05-08 Fosbel International Limited Camera insertion into a furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743983A (zh) * 2014-01-22 2014-04-23 上海大众汽车有限公司 燃烧炉电器模块的离线测试方法和测试装置
CN104881535A (zh) * 2015-05-21 2015-09-02 东南大学 改进的火电厂锅炉温度场重建测温算法
US11312648B2 (en) 2016-12-08 2022-04-26 Land Instruments International Limited Control system for furnace
CN106987278A (zh) * 2017-05-23 2017-07-28 广州博恩能源有限公司 一种生物质气化炉

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Publication number Publication date
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